Improvement in carriage-wheels



l. E. BOWER.

AM FHOTO-UTHOERAF/IIC m N x Kassomrr FR 065.52)

UNITED STATES macaw ISAAC E. BOWER, OF BAINBRIDGE, GEORGIA.

IMPR OVEMENT lN CARRIAGE-WHEELS.

Specification forming part of Letters Patent No. 120,847, dated November14, 1871.

To all whom it may concern:

Be it known that I, ISAAC E. BOWER, of Bain bridge, in the county ofDecatur and State of Georgia, have invented a new and useful Improvementin Carriage-Wheels; and I do hereby declare that the following is afull, clear, and exact description thereof, which will enable othersskilled in the art to make and use the same, reference being had to theaccompanying drawing forming part of this specification.

My invention relates to improvements in the construction of the rims ofcarriage wheels; and it consists in forming the said rims of thin sheetiron or steel bent into the form of three I sides of areetangular figureor triangular shape,

in cross-section, with metal sockets for the ends of the spokes, saidsockets being riveted to the tread of the rim when in rectangular form;but when in triangular form they will be secured to the apex of theangle, or an extension of the sides meeting at the apex.

Figure 1 is a side elevation of the rectangular wheel with a part brokenout and one of the sockets sectional. Fig. 2 is a transverse section ofthe same taken on the line was of Fig. 1. Fig. 3 is a side elevation ofthe triangular wheel, and section of one of the sockets. Fig. 4is asection of Fig. 3 on the line y y. Fig. 5 is an enlarged section 'ofFig. l; and Fig. 6 is an enlarged section of Fig. 3.

Similarletters of reference indicate corresponding parts.

A is the rim formed of a thin sheet-metal strip bent into the form,incross-section, of three sides of a rectangle. B is a metal socket forthe outer end of a spoke. It is fitted to the tread 0 inside of thesides and secured thereto by a rivet, D. E is a similar strip of thinsheet metal bent into triangular form in cross-section with the sides,extending beyond the apex a short distance, as indicated at G. H is asocket with a flattened base, provided with a slot to receive theextension G and be riveted thereto, as shown at I. The flattening of thebase spreads the metal, so that it can be secured by two rivets, asshown in Fig. 3. This arrangement of the sheet metal provides light andstrong rims, that may be cheaply made.

In making these rims the metal strip will first be bent into form, incross-section, represented in Fig. 1. Then it will be bent into circularform, which will complete the form for Fig. 1; but for the wheelrepresented in Fig. 3 the sides will be bent inward to meet at the apexof the angle, and again bent thereat to form the extension G afterward.These rims may be filled with wood rims or not, as preferred, and willhold the said wood rims very securely. The triangular rim may have avertical rim, 00, Fig. 4., for bracing the center of the tire, said ringbeing bolted or secured between the flanges G.

Having thus described my invention, I claim as new and desire to secureby Letters Patent- The sheet-metal rim E of a carriage-wheel, triangularin form and having extension shank Gr, combined with the sockets H toreceive spokes, and having necks to receive said shanks, as de scribed.

ISAAC E. BOWER.

Witnesses:

DANIEL MoGILL,

NOAH L. CLOUD. (31)

